William g



UNITED sTATEs PATENT oEEIoE.

WILLIAM G. PHILIPS, OF NEVVPORT, DELAWARE.

METHOD 0F OPENING AND CLOSING'A GATES.

Specification forming part of Letters Patent No. 10,593, datedlVIarch '7, 1854; Reissued August 21, 1855-, No. 324.

To all whom, t may concern.'

Be it known that I, WILLIAM G. PHILIPS,

yvehicle passing on to the platform will press upon a spring and so open the gate as to allow you to pass through, and in going from the platform on the opposite side, another spring is pressed by the carriage which causes the gate to close.

To enable others skilled in the art to make and usemy invention I will proceed to describe its construction and operation.

The gate, when open, rests in the position of the passage track and when closed, directly at right angles with the same. A platform A, Figure 1, supports the who-le working apparatus and is of suicient width for the passage of the carriage on each side of the gate post B, 1. The gate C, Fig. 1, is hung at its center upon one gate post B, which is kept in an upright positionV y by a bolt passing from it through a cross beam I), Fig. 1, abo-ve and which beam is supported by two uprights E E', Fig. 1, springing from the plat-form A, Fig. 1, on the outer side of each carriage way. At-l tached to the gate on each side of the gate postare two friction rollers, c, Figs. 1 and 2. These rollers rest and act upon four inclined planes, d, Figs. 1 and 3. These planesV are each one fourth Vthe circumference of the circle in extent. Crossing the inner carriage.

track and projecting above the platform is a lever, b, Fig. 1, which rests upon another lever g g, Fig. 1,1'unning in the direction ofV lthe inner end g of the lever gl g', Fig. 1. 'Attached to each of the four posts E Fi F,

Fig. 1 is a spring catch, r, Fig. 1, and on the gate at each end is also a spring catch r. The inclined planes rest upon a pivot and are allowed the horizontal play of about one eighth of a circle regulated by a pin and traverse and acted upon by a spring so that when the gate is lifted the planes move in a contrary direction to that of the gate.

To show the operation, a carriage passing upon the platform, 'the inner rwheel runs upon and presses downward the lever b, Fig. 1, which pressing upon the lever g g, Fig. .1, raises the end g which acting upward against the plate z' raises the gate, the

friction roller c is thus placed upon the Vupper side of one of the inclined planes and the gate moves round one fourth of a circle, allowing the carriage to pass through, and

in so doing it passes over a lever at they other end of the platform corresponding with b o, Fig. 1, which raises the gateup'in vin the same way and closes it by moving it around vanother' quarter of the circle where 1t is stopped or fastened by the catch 1^ on the gate meeting with the catchr upon the uprights E E. The gate is made to act by I placinga weight upon the pin fr, Fig. 1, projecting upward from the gatepost, or it may be done byfacrank ai, Fig. 1,'attac-hed to the same having a co-rd 1, Fig. 1, and pulley z,

Fig. 1, passing over and within one of the gate posts and so that the cord may be wound around the crank.

What I claim as my invention and desire tosecure by Letters Patent is-4 The doublespan rotating gate opening i 85 and closing continually forward by means ofv levers and inclined planes as well as by [FIRST PRINTED 1913.] 

